test pipe exhaust sound

[ericL]

Ok i just got a EG with a B16A and it has i/h/e. The exhaust is an apexi N1 cat back. It currently has a test pipe not a cat...the exhaust is not only loud (which is not that bad) but it's high pitched/raspy/ricer style...my question is will a test pipe kill the deeper sound like that? If so that test pipe is getting chopped up and made into flanges for a hi-flo cat ..

 

[E_SolSi]

yep a test pipe will give you a more rhaspy sound

get a good high flow cat it will quiet things down a bit and take out a lot of the rhaspyness

 

[ericL]

sweet...cuz most DOHC motors that i've driven have been a lot deeper so this was a bit of a suprise..

 

[phyregod]

A high flow cat will help alot, also, look into a resonator! Those help ALOT with the raspy crap.

 

[phunky.buddha]

Originally posted by E_SolSi+Aug 12 2005, 10:40 AM-->

yep a test pipe will give you a more rhaspy sound

get a good high flow cat it will quiet things down a bit and take out a lot of the rhaspyness

[post=539267]Quoted post[/post]​

phyregod@Aug 12 2005, 11:57 AM
A high flow cat will help alot, also, look into a resonator! Those help ALOT with the raspy crap.

[post=539316]Quoted post[/post]​

Drop in the longest resonator you can- it'll really quiet things down.

 

[ericL]

Now with the cat, I'm looking at a carsound/magnaflo cat with no flanges. I have a buddy who welds so that's not a problem. I was going to use the flanges from the test pipe but they're rusted to shit and pretty beat up. So where can i get flanges for the cat?

 

[phyregod]

Originally posted by ericL@Aug 18 2005, 09:59 AM
Now with the cat, I'm looking at a carsound/magnaflo cat with no flanges.  I have a buddy who welds so that's not a problem.  I was going to use the flanges from the test pipe but they're rusted to shit and pretty beat up.  So where can i get flanges for the cat?

[post=541777]Quoted post[/post]​

Nearest muffler shop.. Chop em off of a used cat, every muffler shop has 3 billion old mufflers and cats laying out back.. I'm sure they'd let you have em, or sell em to you for like 5 bucks or something.

 

[adnoh]

bah...skrew the cat if you can get away with it.....unless you're an environmentalist. Resonators are where it's at. I've been running a test pipe on my Magnaflow for some time now and my exhaust note is deeper than most, and not obnoxious at low rpm's. But I have a nice long, polished stainless resonator.

You free up horsepower using the test pipe, and you'll get slightly better gas milage. But it's not doing anything good for the ozone.

 

[E_SolSi]

Originally posted by adnoh@Aug 18 2005, 12:27 PM
You free up horsepower using the test pipe, and you'll get slightly better gas milage.

[post=541851]Quoted post[/post]​

maybe vs a stock cat... but not vs a decent high flow

and the smell coming off a car without a cat is GREAT too

 

[92civicb18b1]

With my LS-T, open DP it wasn't terribly loud and really didn't stink that bad either.

I'm keeping myself from modding the Audi or I would have defenitly chopped the all of the cats out and replaced them with resonators.

 

[K2e2vin]

i got a friend with a Apexi N1; with cat and engine is a JDM GSR but no resonator; its still raspy as hell. im running a header-back with no cat, and a magnaflow-imitation muffler(also no resonator) and its deeper than how my friend's Apexi sounds, so some of the raspiness might be coming from the actual muffler also.

it does stink, and a test pipe does kill your mileage in most cases(im around 25-30mpg on a D15B).

 

[xj0hnx]

The smell from gutting a cat, and switching to a test pipe is different. Gutting will have a nausous smell too it, replacing with a TP will have a heavy burnt fuel smell, both aren't nice.

Kev, yea, the difference in interenal designs plays a great part in teh sound of a muffler, not just the volume. A company here named Remus makes an exhaust that can make a D series sound like a V6, had one on one of my rexs, and it was the best sounding muffler I have heard.

 

[E_SolSi]

ive seen a few remus exhausts on VWs.... the sound is fucking sexy
if i end up getting a BMW or an Audi i will be putting a remus exhaust on it

 

[92civicb18b1]

yes, REMUS has some sick exhaust systems.

They don't make one for my 96 and it's like $300 a muffler.